3impostor — impostor, faker, quack, mountebank, charlatan denote a person who makes pretensions to being someone or something that he is not or of being able to do something he cannot really do. Impostor applies especially to one who passes himself off for… …

4Impostor — Im*pos tor, n. [L. impostor a deceiver, fr. imponere to impose upon, deceive. See {Impone}.] One who imposes upon others; a person who assumes a character or title not his own, for the purpose of deception; a pretender. The fraudulent impostor… …

11impostor — or imposter [im päs′tər] n. [Fr imposteur &LT; LL impostor &LT; pp. of L imponere: see IMPOSE] a person who deceives or cheats others, esp. by pretending to be someone or something that he or she is not SYN. QUACK2 …